The STEC SEC-4400R is a heavy-duty industrial mass flow controller engineered for precise gas flow regulation in semiconductor, analytical, and process gas systems. It utilizes a thermal sensing principle with a capillary bypass and closed-loop control to maintain stable mass flow independent of pressure and temperature fluctuations.
STEC SEC-4400R Technical Specifications
| Parameter | Specification |
|---|---|
| Flow Range | 0–500 sccm (N2 equivalent) |
| Accuracy | ±1% of setpoint (typical) |
| Repeatability | ±0.2% of full scale |
| Response Time | ≤1 second (to within 2% of final value) |
| Operating Pressure | 0–0.7 MPa (0–7 bar) |
| Proof Pressure | 1.0 MPa (10 bar) |
| Gas Compatibility | Compatible with inert and non-corrosive gases |
| Wetted Materials | Stainless steel 316L, PTFE seals |
| Electrical Interface | 0–5 VDC analog, RS-485 (optional) |
| Supply Voltage | ±15 VDC or 24 VDC |
| Process Connection | 1/4″ VCR or Swagelok compatible |
| Operating Temperature | 5–50 °C |
| Leak Integrity | 1×10⁻⁹ atm·cc/sec He |
| Mounting | Panel or manifold mount |
Key Engineering Features
- Thermal mass flow sensing with closed-loop control for stable, accurate gas delivery.
- Fast response time and high repeatability for dynamic process control.
- Stainless steel wetted parts and PTFE seals ensure corrosion resistance and long service life.
- Analog and optional digital communication interfaces for easy system integration.
- Compact, rugged design suitable for semiconductor tools and analytical instruments.
Industrial Applications
- Semiconductor manufacturing: gas delivery in CVD, etch, and diffusion processes.
- Analytical instrumentation: carrier gas and sample flow control in GC and LC systems.
- Process gas blending and proportioning in chemical and pharmaceutical production.
- Research and development: precise flow control in laboratory and pilot-scale reactors.
- Environmental monitoring: calibration gas dilution and sampling systems.
For technical inquiries, dimensional drawings, or replacement support for STEC SEC-4400R, contact the Pro-Hydraulic engineering team.
PRODUCT IMAGES
STEC SEC-4400R Mass Flow Controller
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the STEC SEC-4400R Mass Flow Controller. This precision-engineered industrial component delivers reliable performance and accurate operation for demanding industrial systems.